General Description
The UM3352E series are ±15kV ESD-protected, high-speed, half-duplex transceivers for RS-485 communication that contain one driver and one receiver. The device features fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open, shorted or idle. This means that the receiver output will be logic high if all transmitters on a terminated bus are disabled (high impedance). The UM3352E features reduced slew-rate driver that minimizes EMI and reduces reflections caused by improperly terminated cables, allowing error-free data transmission up to 500kbps. It also features enhanced ESD protection. 

FEATUREs
● ESD Protection for RS-485 I/O Pins
   ±15kV—Human Body Mode
   ±15kV—IEC61000-4-2, Air Discharge Mode
   ±8kV—IEC61000-4-2, Contact Discharge Mode
● True Fail-Safe Receiver
● Enhanced Slew-Rate Limiting Facilitates Error-Free
   Data Transmission
● 2µA Low-Current Shutdown Mode
● -7V to +12V Common-Mode Input Voltage Range
● Allows up to 256 Transceivers on the Bus
● Thermal Shutdown
● Current-Limiting for Driver Overload Protection
● Hot Swap Capability

APPLICATIONs
● RS-485 Transceivers
● Intelligent Meters and Sensors
● Industrial Control
● Lighting Systems
● Security Systems
● HVAC Application